R. Z. Azhar, N. W. A. Majid, and R. D. Romdhoni, “Sport Smart Futsal: Development and Feasibility Evaluation of an Android-Based Educational Game for Basic Futsal Technique Instruction in Junior High School PJOK”, JES, vol. 10, no. 8, pp. 190–205, Aug. 2026, doi: 10.31258/jes.10.8.p.190-205.